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Water quality characteristics of fracturing flowback fluid in Changqing Oilfield

Established in 2001, Puyang Zhong Yuan Restar Petroleum Equipment Co.,Ltd, “RSD” for short, is Henan’s high-tech enterprise with intellectual property advantages and independent legal person qualification. With registered capital of RMB 50 million, the Company has two subsidiaries-Henan Restar Separation Equipment Technology Co., Ltd We are mainly specialized in R&D, production and service of various intelligent separation and control systems in oil&gas drilling,engineering environmental protection and mining industries.We always take the lead in Chinese market shares of drilling fluid shale shaker for many years. Our products have been exported more than 20 countries and always extensively praised by customers. We are Class I network supplier of Sinopec,CNPC and CNOOC and registered supplier of ONGC, OIL India,KOC. High quality and international standard products make us gain many Large-scale drilling fluids recycling systems for Saudi Aramco and Gazprom projects.

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Water quality characteristics of fracturing flowback fluid in Changqing Oilfield
DryFra cTM Waterless Fracturing Technology
DryFra cTM Waterless Fracturing Technology

cial tension and ,viscosity, of oil, enhancing initial ,flowback,. Energized ,flow back,: Upon ,flowback,, gaseous CO 2 provides the energy to push fluids out of the fractures and well bore. Reduced formation damage: CO 2eliminates clay swelling, ,reducing, blockage in fractures, and leaves a residue free proppant pack. Proppant placement: The ,fluid, ...

CO2 Foam as an Improved Fracturing Fluid System for ...
CO2 Foam as an Improved Fracturing Fluid System for ...

31/5/2018, · Surfactants that are used as a foaming agent may help to lower the surface tension of the ,fracturing fluid, and avoids water blocking by recovering ,fracturing fluid, after the job completion . Both laboratory and field scale tests have shown that the addition of surfactant increases the gas production by ,reducing, the capillary forces and altering the wettability of shales.

Produced and Flowback Water Recycling and Reuse ...
Produced and Flowback Water Recycling and Reuse ...

Once the ,fracturing, procedure itself is completed, water returns to the surface as produced water, the naturally occurring water found in shale formations that flows to the surface throughout the entire production lifespan of the well, and ,flowback,, the fraction of hydraulic ,fracturing fluid, recovered.

A Feasibility Study of Reusing Flowback Fluids in ...
A Feasibility Study of Reusing Flowback Fluids in ...

The ,viscosity, and rheological properties of ,fracturing fluid,, significantly affect leak-off rate, proppant placement, length and width of fractures, fracture conductivity, and consequently, the ...

Carbonate VES - Global Oilfield Services & Equipment
Carbonate VES - Global Oilfield Services & Equipment

VES-based fluids include ,VDA, viscoelastic diverting acid, ClearFRAC polymer-free hydraulic ,fracturing, fluids, and ClearPAC polymer-free ,fluid, for gravel packs. The ,fluid, rapidly develops ,viscosity, in situ upon acid spending and becomes self diverting. The ,viscosity, reduces dominating wormholes and allows the ,fluid, to stimulate other zones.

Fracturing-Fluid Flowback Simulation with Consideration of ...
Fracturing-Fluid Flowback Simulation with Consideration of ...

This means that using the low-density proppant (small ρ p) and low-viscosity fracturing-fluid (small μ w) in hydraulic fracturing treatment, assists in recovering the fluid and inhibiting the proppant flowback.

WO2019027710A1 - Fracturing method using a low-viscosity ...
WO2019027710A1 - Fracturing method using a low-viscosity ...

An optimization process to optimize hydraulic fracture design evaluates and quantifies the proppant-carrying capacity of the invented ,fluid, and its impact in the proppant transport during ,fracturing,. A ,fluid, design with enhanced proppant-carrying capacity utilizes a low- ,viscosity fluid, with high proppant carrying capacity and low required power for injection into a hydrocarbon-bearing, subterranean …

CA1221822A - Fracturing fluid breaker system which is ...
CA1221822A - Fracturing fluid breaker system which is ...

ABSTRACT OF THE DISCLOSURE Disclosed are compositions and related methods of use for ,reducing, the ,viscosity, of a ,fluid, introduced into a subterranean formation. The compositions are introduced into the subterranean formation and are non-reactive to the ,fluid, until activated by the closing of any fractures in the subterranean formation upon the com-positions.

2021 Hydraulic Fracturing Technology Showcase
2021 Hydraulic Fracturing Technology Showcase

Additionally, this also allows less HVFR to be used to achieve a target viscosity in brine, thereby reducing the risk of formation damage by the fracturing fluid. Viscosity of 6 GPT HVFR fluids in 10% potassium chloride brine with Stepan booster formulation shows improved performance versus control at two different shear rates.

Preparation of a Novel Fracturing Fluid System with ...
Preparation of a Novel Fracturing Fluid System with ...

However, it is well known that the initial viscosity of most HAWSP-based fracturing fluids is too large due to its special structure, which will increase the friction between the fracturing fluid and pipeline. In other words, an extra burden for fracturing equipment would be presented, which would increase the risk of equipment failure over time.

Original Research Analysis of Chemical and Toxicological ...
Original Research Analysis of Chemical and Toxicological ...

plex (because of low ,viscosity, and high injection speed) • Cracks decrease in height and part of the ,flowback, water can be re-used to develop another ,fracturing fluid, [6, 9] ,Fracturing, fluids prepared on the basis of surfactants (the so-called viscoelastic surfactant (VES) fluids) belong to another group. Required ,viscosity, parameters are obtained

DryFra cTM Waterless Fracturing Technology
DryFra cTM Waterless Fracturing Technology

cial tension and ,viscosity, of oil, enhancing initial ,flowback,. Energized ,flow back,: Upon ,flowback,, gaseous CO 2 provides the energy to push fluids out of the fractures and well bore. Reduced formation damage: CO 2eliminates clay swelling, ,reducing, blockage in fractures, and leaves a residue free proppant pack. Proppant placement: The ,fluid, ...

Preparation of a Novel Fracturing Fluid System with ...
Preparation of a Novel Fracturing Fluid System with ...

However, it is well known that the initial ,viscosity, of most HAWSP-based ,fracturing, fluids is too large due to its special structure, which will increase the friction between the ,fracturing fluid, and pipeline. In other words, an extra burden ,for fracturing equipment, would be presented, which would increase the risk of ,equipment, failure over time.

Hydraulic fracturing - Wikipedia
Hydraulic fracturing - Wikipedia

As the fracturing process proceeds, viscosity-reducing agents such as oxidizers and enzyme breakers are sometimes added to the, fracturing fluid, to deactivate the gelling agents and encourage, flowback,. Such oxidizers react with and break down the gel,, reducing, the, fluid's viscosity, and ensuring that no proppant is pulled from the formation.

Carbonate VES - Global Oilfield Services & Equipment
Carbonate VES - Global Oilfield Services & Equipment

VES-based fluids include VDA viscoelastic diverting acid, ClearFRAC polymer-free hydraulic fracturing fluids, and ClearPAC polymer-free fluid for gravel packs. The fluid rapidly develops viscosity in situ upon acid spending and becomes self diverting. The viscosity reduces dominating wormholes and allows the fluid to stimulate other zones.

FLOWBACK AID FOR FRACTURING FLUIDS - Schlumberger ...
FLOWBACK AID FOR FRACTURING FLUIDS - Schlumberger ...

A flowback aid may be included in the fracturing fluid to reduce capillary pressure and water blocks, thereby improving the kinetics of the flowback and preventing or minimizing the leaving-behind of any substantial amount of the fracturing fluid. Flowback aids, such as surfactants, have also been shown to aid in the “clean-up” of the proppant pack, thereby accelerating the flow of hydrocarbons through the …

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